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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `Encoder` struct in crate `rustc_serialize`."><meta name="keywords" content="rust, rustlang, rust-lang, Encoder"><title>rustc_serialize::json::Encoder - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="https://www.rust-lang.org/favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../rustc_serialize/index.html'><div class='logo-container'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo'></div></a><p class='location'>Struct Encoder</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a><a href="#method.new_pretty">new_pretty</a><a href="#method.set_indent">set_indent</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Encoder">Encoder</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">!UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class='location'><a href='../index.html'>rustc_serialize</a>::<wbr><a href='index.html'>json</a></p><script>window.sidebarCurrent = {name: 'Encoder', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/rustc_serialize/json.rs.html#577-581' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='../index.html'>rustc_serialize</a>::<wbr><a href='index.html'>json</a>::<wbr><a class="struct" href=''>Encoder</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct Encoder<'a> { /* fields omitted */ }</pre></div><div class='docblock'><p>A structure for implementing serialization to JSON.</p>
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</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl<'a> <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl' class='anchor'></a><a class='srclink' href='../../src/rustc_serialize/json.rs.html#583-620' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.new_pretty' class="method"><code id='new_pretty.v'>pub fn <a href='#method.new_pretty' class='fnname'>new_pretty</a>(writer: &'a mut dyn <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Write.html" title="trait core::fmt::Write">Write</a>) -> <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#586-595' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a new encoder whose output will be written in human-readable
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JSON to the specified writer</p>
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</div><h4 id='method.new' class="method"><code id='new.v'>pub fn <a href='#method.new' class='fnname'>new</a>(writer: &'a mut dyn <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Write.html" title="trait core::fmt::Write">Write</a>) -> <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#599-605' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a new encoder whose output will be written in compact
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JSON to the specified writer</p>
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</div><h4 id='method.set_indent' class="method"><code id='set_indent.v'>pub fn <a href='#method.set_indent' class='fnname'>set_indent</a>(&mut self, new_indent: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#609-619' title='goto source code'>[src]</a></h4><div class='docblock'><p>Set the number of spaces to indent for each level.
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This is safe to set during encoding.</p>
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</div></div><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-Encoder' class='impl'><code class='in-band'>impl<'a> <a class="trait" href="../../rustc_serialize/trait.Encoder.html" title="trait rustc_serialize::Encoder">Encoder</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-Encoder' class='anchor'></a><a class='srclink' href='../../src/rustc_serialize/json.rs.html#622-928' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='../../rustc_serialize/trait.Encoder.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="../../rustc_serialize/json/enum.EncoderError.html" title="enum rustc_serialize::json::EncoderError">EncoderError</a></code></h4><div class='docblock'><p>The error type for method results.</p>
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</div><h4 id='method.emit_nil' class="method hidden"><code id='emit_nil.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_nil' class='fnname'>emit_nil</a>(&mut self) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#625-629' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a nil value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_nil">Read more</a></p>
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</div><h4 id='method.emit_usize' class="method hidden"><code id='emit_usize.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_usize' class='fnname'>emit_usize</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#631' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a usize value.</p>
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</div><h4 id='method.emit_u64' class="method hidden"><code id='emit_u64.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_u64' class='fnname'>emit_u64</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#632' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a u64 value.</p>
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</div><h4 id='method.emit_u32' class="method hidden"><code id='emit_u32.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_u32' class='fnname'>emit_u32</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#633' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a u32 value.</p>
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</div><h4 id='method.emit_u16' class="method hidden"><code id='emit_u16.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_u16' class='fnname'>emit_u16</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#634' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a u16 value.</p>
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</div><h4 id='method.emit_u8' class="method hidden"><code id='emit_u8.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_u8' class='fnname'>emit_u8</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#635' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a u8 value.</p>
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</div><h4 id='method.emit_isize' class="method hidden"><code id='emit_isize.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_isize' class='fnname'>emit_isize</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#637' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a isize value.</p>
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</div><h4 id='method.emit_i64' class="method hidden"><code id='emit_i64.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_i64' class='fnname'>emit_i64</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#638' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a i64 value.</p>
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</div><h4 id='method.emit_i32' class="method hidden"><code id='emit_i32.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_i32' class='fnname'>emit_i32</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#639' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a i32 value.</p>
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</div><h4 id='method.emit_i16' class="method hidden"><code id='emit_i16.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_i16' class='fnname'>emit_i16</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#640' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a i16 value.</p>
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</div><h4 id='method.emit_i8' class="method hidden"><code id='emit_i8.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_i8' class='fnname'>emit_i8</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#641' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a i8 value.</p>
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</div><h4 id='method.emit_bool' class="method hidden"><code id='emit_bool.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_bool' class='fnname'>emit_bool</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#643-651' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a bool value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_bool">Read more</a></p>
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</div><h4 id='method.emit_f64' class="method hidden"><code id='emit_f64.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_f64' class='fnname'>emit_f64</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#653-655' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a f64 value.</p>
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</div><h4 id='method.emit_f32' class="method hidden"><code id='emit_f32.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_f32' class='fnname'>emit_f32</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#656-658' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a f32 value.</p>
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</div><h4 id='method.emit_char' class="method hidden"><code id='emit_char.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_char' class='fnname'>emit_char</a>(&mut self, v: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.char.html">char</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#660-662' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a char value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_char">Read more</a></p>
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</div><h4 id='method.emit_str' class="method hidden"><code id='emit_str.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_str' class='fnname'>emit_str</a>(&mut self, v: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#663-665' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a string value.</p>
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</div><h4 id='method.emit_enum' class="method hidden"><code id='emit_enum.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum' class='fnname'>emit_enum</a><F>(&mut self, _name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#667-671' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit an enumeration value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum">Read more</a></p>
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</div><h4 id='method.emit_enum_variant' class="method hidden"><code id='emit_enum_variant.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_variant' class='fnname'>emit_enum_variant</a><F>(<br> &mut self, <br> name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> _id: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> cnt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> f: F<br>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#673-717' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a enumeration variant value with no or unnamed data. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_variant">Read more</a></p>
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</div><h4 id='method.emit_enum_variant_arg' class="method hidden"><code id='emit_enum_variant_arg.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_variant_arg' class='fnname'>emit_enum_variant_arg</a><F>(&mut self, idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#719-733' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit an unnamed data item for an enumeration variant. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_variant_arg">Read more</a></p>
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</div><h4 id='method.emit_enum_struct_variant' class="method hidden"><code id='emit_enum_struct_variant.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_struct_variant' class='fnname'>emit_enum_struct_variant</a><F>(<br> &mut self, <br> name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> id: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> cnt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> f: F<br>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#735-744' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a enumeration variant value with no or named data. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_struct_variant">Read more</a></p>
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</div><h4 id='method.emit_enum_struct_variant_field' class="method hidden"><code id='emit_enum_struct_variant_field.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_struct_variant_field' class='fnname'>emit_enum_struct_variant_field</a><F>(<br> &mut self, <br> _: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> f: F<br>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#746-754' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a named data item for an enumeration variant. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_enum_struct_variant_field">Read more</a></p>
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</div><h4 id='method.emit_struct' class="method hidden"><code id='emit_struct.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_struct' class='fnname'>emit_struct</a><F>(&mut self, _: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#757-777' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a struct value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_struct">Read more</a></p>
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</div><h4 id='method.emit_struct_field' class="method hidden"><code id='emit_struct_field.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_struct_field' class='fnname'>emit_struct_field</a><F>(<br> &mut self, <br> name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> f: F<br>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#779-797' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a field item for a struct. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_struct_field">Read more</a></p>
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</div><h4 id='method.emit_tuple' class="method hidden"><code id='emit_tuple.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple' class='fnname'>emit_tuple</a><F>(&mut self, len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#799-804' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a tuple value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple">Read more</a></p>
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</div><h4 id='method.emit_tuple_arg' class="method hidden"><code id='emit_tuple_arg.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_arg' class='fnname'>emit_tuple_arg</a><F>(&mut self, idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#805-810' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a data item for a tuple. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_arg">Read more</a></p>
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</div><h4 id='method.emit_tuple_struct' class="method hidden"><code id='emit_tuple_struct.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_struct' class='fnname'>emit_tuple_struct</a><F>(<br> &mut self, <br> _: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> f: F<br>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#812-817' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a tuple struct value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_struct">Read more</a></p>
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</div><h4 id='method.emit_tuple_struct_arg' class="method hidden"><code id='emit_tuple_struct_arg.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_struct_arg' class='fnname'>emit_tuple_struct_arg</a><F>(&mut self, idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#818-823' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a data item for a tuple struct. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_tuple_struct_arg">Read more</a></p>
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</div><h4 id='method.emit_option' class="method hidden"><code id='emit_option.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_option' class='fnname'>emit_option</a><F>(&mut self, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#825-830' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit an optional value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_option">Read more</a></p>
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</div><h4 id='method.emit_option_none' class="method hidden"><code id='emit_option_none.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_option_none' class='fnname'>emit_option_none</a>(&mut self) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#831-834' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit the <code>None</code> optional value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_option_none">Read more</a></p>
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</div><h4 id='method.emit_option_some' class="method hidden"><code id='emit_option_some.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_option_some' class='fnname'>emit_option_some</a><F>(&mut self, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#835-840' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit the <code>Some(x)</code> optional value. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_option_some">Read more</a></p>
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</div><h4 id='method.emit_seq' class="method hidden"><code id='emit_seq.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_seq' class='fnname'>emit_seq</a><F>(&mut self, len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#842-862' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit a sequence of values. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_seq">Read more</a></p>
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</div><h4 id='method.emit_seq_elt' class="method hidden"><code id='emit_seq_elt.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_seq_elt' class='fnname'>emit_seq_elt</a><F>(&mut self, idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#864-876' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit an element in a sequence. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_seq_elt">Read more</a></p>
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</div><h4 id='method.emit_map' class="method hidden"><code id='emit_map.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_map' class='fnname'>emit_map</a><F>(&mut self, len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#878-898' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit an associative container (map). <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_map">Read more</a></p>
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</div><h4 id='method.emit_map_elt_key' class="method hidden"><code id='emit_map_elt_key.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_map_elt_key' class='fnname'>emit_map_elt_key</a><F>(&mut self, idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#900-915' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit the key for an entry in a map. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_map_elt_key">Read more</a></p>
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</div><h4 id='method.emit_map_elt_val' class="method hidden"><code id='emit_map_elt_val.v'>fn <a href='../../rustc_serialize/trait.Encoder.html#tymethod.emit_map_elt_val' class='fnname'>emit_map_elt_val</a><F>(&mut self, _idx: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, f: F) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a>) -> <a class="type" href="../../rustc_serialize/json/type.EncodeResult.html" title="type rustc_serialize::json::EncodeResult">EncodeResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>>, </span></code><a class='srclink' href='../../src/rustc_serialize/json.rs.html#917-927' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Emit the value for an entry in a map. <a href="../../rustc_serialize/trait.Encoder.html#tymethod.emit_map_elt_val">Read more</a></p>
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</div></div></div><h2 id='synthetic-implementations' class='small-section-header'>Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a></h2><div id='synthetic-implementations-list'><h3 id='impl-Send' class='impl'><code class='in-band'>impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Unpin' class='impl'><code class='in-band'>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-Unpin' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-UnwindSafe' class='impl'><code class='in-band'>impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-UnwindSafe' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-RefUnwindSafe' class='impl'><code class='in-band'>impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../rustc_serialize/json/struct.Encoder.html" title="struct rustc_serialize::json::Encoder">Encoder</a><'a></code><a href='#impl-RefUnwindSafe' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href='#impl-Into%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#544-549' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#546-548' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href='#impl-From%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#553-555' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#554' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#572-578' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#575-577' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#560-567' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-2' class="type"><code id='Error.t-2'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#564-566' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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</div></div><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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